Simple Phenomena of Magnetism by Yan Jing Wong https://padlet.com/wongyanjing1/9wiq5o58h1hcz33 en-us 2025-01-16 06:39:06 UTC 2025-01-21 03:03:30 UTC hello@padlet.com https://padlet.net/icons/8.0/png/1f9f2.png https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293123004 The force of attraction between the North Pole of the magnet and the South Pole from iron bar cause them to move together

]]> 2025-01-16 07:08:57 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293123004 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293123493 because the magnetic domain faces toward the magnet due to induced magnetism

]]> 2025-01-16 07:09:40 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293123493 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293123854 can be switched on or off

]]> 2025-01-16 07:09:54 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293123854 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293124193 The iron bar is attracted to the magnetic force of the magnet as the iron bag is magnetic.

]]> 2025-01-16 07:10:01 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293124193 1. https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293124735 because it is a magnetic material and it is attracted to the bar magnet

]]> 2025-01-16 07:10:40 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293124735 unlike poles attract, magnetic domains aligned towards ze magnet's north pole, iron bar south pole attracted to that https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293124768 2025-01-16 07:10:43 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293124768 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293124934 Iron is a magnetic material. Once a magnet is placed near a magnetic material, it is induced. Thus, the iron bar becomes a magnet and attracts towards the magnet.


]]> 2025-01-16 07:10:58 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293124934 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293125062 can be switched on or off

]]> 2025-01-16 07:11:07 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293125062 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293125206 It can be controlled by switching on and off

]]> 2025-01-16 07:11:18 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293125206 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293125404 place the compass around the magnet and write a dot where the compass is pointing, move the composs on top of the dot and repeat

]]> 2025-01-16 07:11:34 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293125404 Can be switched on and off https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293125454 2025-01-16 07:11:38 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293125454 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293125576 2025-01-16 07:11:46 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293125576 High magnetic field strength https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293125603 2025-01-16 07:11:48 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293125603 can turn on or off https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293125610 2025-01-16 07:11:49 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293125610 can be switched on n off https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293125731 2025-01-16 07:11:57 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293125731 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293125855 2025-01-16 07:12:05 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293125855 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293126000 Iron bar is magnetised as a temporary magnet so it attracts towards the magnet

]]> 2025-01-16 07:12:16 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293126000 Can be switched on and off https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293126326 2025-01-16 07:12:36 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293126326 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293126730 student can slowly bring one end of the bar magnet to the metal rod to see whether it repels or attracts

]]> 2025-01-16 07:13:06 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293126730 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293126765 using the north pole test for attraction at one end and repulsion at the other. If both attraction and repulsion are present it is a magnet

]]> 2025-01-16 07:13:10 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293126765 Place the compass around the bar magnet and mark the directions https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293126785 2025-01-16 07:13:11 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293126785 Place the compass at different position around the bar magnet. Then mark the direction of the arrow and connect the lines marked with the compass to draw the magnetic field pattern. https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293126806 2025-01-16 07:13:12 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293126806 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293127111 test for repulsion and attraction

]]> 2025-01-16 07:13:29 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293127111 Place the compass in the each pole and mark the direction its going, continue it https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293127257 2025-01-16 07:13:37 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293127257 yes https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293127271 yes i also think poinnt different poles on the same spot of the rod, if one of the poles repel then the rod has aligned magnetic domains and has magnetism, thus is a metal


]]> 2025-01-16 07:13:38 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293127271 steel https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293127326 2025-01-16 07:13:41 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293127326 wwwwww https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293127343 when the magnet is placed near the iron bar, iron bar will be magnetised and have north pole and south pole. If poles of the magnet and iron bar is different, iron bar will get attracted. Therefore the iron bar moves towards the magnet

]]> 2025-01-16 07:13:42 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293127343 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293127378 repels magnet and attracts unmagnetised iron

]]> 2025-01-16 07:13:45 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293127378 One could be control https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293127477 2025-01-16 07:13:52 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293127477 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293127600 steel

]]> 2025-01-16 07:13:53 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293127600 Steel https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293127685 2025-01-16 07:13:59 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293127685 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293127780 permanent magnet induce magnetic materials so magnetic material would become a magnet. So magnetic material will be attracted to permanent magnet.

]]> 2025-01-16 07:14:07 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293127780 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293127822 hammer it or heat it

]]> 2025-01-16 07:14:10 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293127822 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293127855 Place the compass next to the magnet and record where the arrow is pointing with a dot. Move the compass to the dot and mark the dot at the direction of the arrow. Continue until it reaches back to the magnet. Line the dots with a line and draw an arrow in which the compass was pointing to

]]> 2025-01-16 07:14:12 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293127855 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293127914 hamming a magnet from east to west can scramble the magnetic domain, demagnetizing it

]]> 2025-01-16 07:14:14 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293127914 Place the bar near the metal rod and see if it attracts towards the bar https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293127977 2025-01-16 07:14:16 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293127977 indeed https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293127991 indeed to test whether any of the poles on the magnet can repel the iron rod

]]> 2025-01-16 07:14:18 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293127991 As iron bar are temporary magnets, it becomes a magnet temporally when it was closed to the bar magnet. it align the magnetic domains and magnetised the iron bar and as it was magnetised, the iron bar got attracted towards the magnet https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293128075 2025-01-16 07:14:24 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293128075 By placing a magnetic material near the metal rod. If it attracts, then the metal rod is a magnet. https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293128085 2025-01-16 07:14:25 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293128085 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293128100 2025-01-16 07:14:26 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293128100 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293128262 electromagnet.

can be switched on or off

an alarm

]]> 2025-01-16 07:14:38 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293128262 Place the magnetic bar near it so it attracts https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293128329 2025-01-16 07:14:43 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293128329 It can be switched on or off https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293128386 2025-01-16 07:14:47 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293128386 Steel https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293128400 2025-01-16 07:14:48 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293128400 Put the bar of magnet close to the metal rod see if repel or attract if it don’t is not a magnet https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293128529 2025-01-16 07:14:53 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293128529 yup https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293128647 point differernt poles on the same spot of the rod. if one of the poles repel, the rod has fixed magnetic domains and has magnetism, thus is a metal

]]> 2025-01-16 07:14:59 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293128647 Hammer th permanent magnet from east to west https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293128671 2025-01-16 07:15:00 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293128671 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293128825 2025-01-16 07:15:09 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293128825 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293128888 steel

]]> 2025-01-16 07:15:15 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293128888 wwwwwwww https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293128950 the student use a bar magnet and place it near a metal rod. If it attracted, a metal rod is a magnet, but if it doesn't, it means it is not a magnet

]]> 2025-01-16 07:15:19 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293128950 real steel https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293129002 2025-01-16 07:15:23 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293129002 By placing it near a magnetic material to see whether it repel or attracts https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293129062 2025-01-16 07:15:27 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293129062 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293129096 can be switched on and off

]]> 2025-01-16 07:15:29 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293129096 Steel https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293129407 2025-01-16 07:15:49 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293129407 steel https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293129514 2025-01-16 07:15:57 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293129514 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293129672 Place bar magnet near to the iron bar, and check whether it attracts or not

]]> 2025-01-16 07:16:07 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293129672 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293129895 2025-01-16 07:16:19 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293129895 by https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293130011 by hitting the magnet with strong force, enough to misalign the magnetic domains of the magnet

]]> 2025-01-16 07:16:25 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293130011 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293130046 steel

]]> 2025-01-16 07:16:28 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293130046 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293130087 place compass at different position around the bar magnet and mark the direction of arrow, then connect mark lines with compass to draw pattern of magnetic field

]]> 2025-01-16 07:16:31 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293130087 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293130174 Place the bar magnet near one side of the metal rod. Observe if it attracts or repel. Do the same for the other side. If one side attracts and the other repels, it is a magnet. If both side is attracted it is not a magnet. If both side neither attracts or repel is is not a magnetic metal

]]> 2025-01-16 07:16:34 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293130174 By striking it with a hammer repeatedly or by running an a.c. current through the magnet. https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293130268 2025-01-16 07:16:40 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293130268 Put the paper rod on the iron rod see if it stick https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293130341 2025-01-16 07:16:44 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293130341 Steel https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293130409 2025-01-16 07:16:50 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293130409 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293130587 2025-01-16 07:17:02 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293130587 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293130677 A permanent magnet can be demagnetised by passing an electric current of high frequency

]]> 2025-01-16 07:17:08 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293130677 By hammering the magnet and heating it https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293130807 2025-01-16 07:17:12 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293130807 Electromagnet https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293130977 can be switched on or off

maglev

]]> 2025-01-16 07:17:22 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293130977 Steel https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293131026 2025-01-16 07:17:25 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293131026 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293131094 2025-01-16 07:17:32 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293131094 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293131296 gold - no effect

aluminium - attracted

copper - no effect

iron - attracted

steel - repel

]]> 2025-01-16 07:17:46 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293131296 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293131385 bring one end of bar magnet to metal rod and see if it repels or attracts

]]> 2025-01-16 07:17:49 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293131385 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293131591 2025-01-16 07:17:57 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293131591 Steel https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293131668 2025-01-16 07:18:03 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293131668 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293131723 2025-01-16 07:18:08 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293131723 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293131782 Place a known magnet next to the iron rod and see if the iron could attract and repel.

]]> 2025-01-16 07:18:13 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293131782 electro magnet, can adjust its strength, maglev trainies https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293131803 2025-01-16 07:18:16 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293131803 Firstly, place the magnet on the top of a piece of paper. Place the compass beside the magnet and plot the direction that the compass needle points by drawing a dots, move the compass from one pole to the other pole until you draw to the end.Place the back of the needles lines of the compass with the previous dot. Join all the points together and draw the direction. Repeat the step above but start with another starting point https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293131910 2025-01-16 07:18:25 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293131910 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293131933 steel

]]> 2025-01-16 07:18:26 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293131933 place bar magnet near iron bar n see if it repels or attracts https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293132003 2025-01-16 07:18:32 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293132003 steel https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293132089 2025-01-16 07:18:39 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293132089 steeley https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293132146 2025-01-16 07:18:44 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293132146 striking it with hammer https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293132356 2025-01-16 07:18:56 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293132356 Aluminium-no effect https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293132436 copper-no effect

Iron- attracted by magnet

Steel-attracted by magnet

]]> 2025-01-16 07:18:59 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293132436 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293132524 Hammering method. By repeatedly hitting the magnet, it will cause the magnetic domains to be misaligned and no longer be facing towards the same direction therefore lose its magnetism

]]> 2025-01-16 07:19:05 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293132524 electromagnet as it can be switched on and off easily https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293132879 2025-01-16 07:19:31 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293132879 steel https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293133071 2025-01-16 07:19:40 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293133071 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293133207 (i) Electromagnet

(ii) It can be controlled by turning on and off

(iii)maglev train

]]> 2025-01-16 07:19:49 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293133207 affirmatively https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293133299 gold: no effect

aluminum: attract

copper: no effect

iron: attract

steel: attract & repel

]]> 2025-01-16 07:19:55 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293133299 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293133563 steel

]]> 2025-01-16 07:20:02 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293133563 gold- no effect aluminium-attracted copper- no effect iron- attracted steel- repel https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293134321 2025-01-16 07:20:36 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293134321 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293134941 aluminum - no effect

copper - no effect

iron - attracted by magnet

steel - attracted by magnet

]]> 2025-01-16 07:21:16 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293134941 Student can move the bar magnet close to the metal rod. If the metal rod is a magnet, it can either repel or attract the bar magnet. If the metal rod is a non magnetic material it will neither repel or attract. https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293135250 2025-01-16 07:21:34 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293135250 Use a magnet bar and move close to the iron rod, it will either repel or attract https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293139511 2025-01-16 07:25:35 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293139511 Steel https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293139561 2025-01-16 07:25:38 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3293139561 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294330974 The iron bars magnetic domain is aligned and the poles are opposite to the magnet.

]]> 2025-01-17 02:55:07 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294330974 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294331319 Easy to get

]]> 2025-01-17 02:55:26 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294331319 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294332031 Because the iron bar is induced, so the pole nearest to the north side of the iron bar will turn into the south. So, they are opposite poles so they attract.

]]> 2025-01-17 02:56:09 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294332031 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294332429 It can be switvhed on or off

]]> 2025-01-17 02:56:36 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294332429 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294332648 The iron is induce so the side reacts to the north side of the best and will turn into with and opposite sides will attract.


]]> 2025-01-17 02:56:46 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294332648 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294332976 Able to switch on and off

]]> 2025-01-17 02:57:01 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294332976 Iron is magnetic material, and it is inside the magnetic field of the magnet, so that the iron is attracted and iron bar moves toward the magnet https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294333145 2025-01-17 02:57:08 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294333145 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294333154 It is being attracted by the magnet, as unlike poles attract so the iron bar's S pole faces the magnet's N pole.

]]> 2025-01-17 02:57:09 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294333154 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294333207 Iron bars becomes a magnet and is attracted to the magnet

]]> 2025-01-17 02:57:12 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294333207 It is able toswitch on/off easily. https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294333824 2025-01-17 02:57:46 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294333824 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294333880 Can be able to switch on and off.

]]> 2025-01-17 02:57:49 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294333880 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294333922 2025-01-17 02:57:52 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294333922 27yuqian https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294333995 The iron bar is attracted to the bar magnet, and becomes an induced magnet. The pole of the end of the iron bar that is closer to the bar magnet is S, which is the opposite pole to the pole of the end of the bar magnet that is closer to the iron bar. The pole of at the further end of the iron bar which is further away from the bar magnet is N.

]]> 2025-01-17 02:57:57 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294333995 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294334259 Domains of iron bar gets aligned so iron bar is magnetised and a South and North Pole is created. The N pole of the magnet attracts with the S pole of the iron bar so it moves

]]> 2025-01-17 02:58:11 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294334259 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294334419 Has option to be turned on and off or change direction of polarity

]]> 2025-01-17 02:58:16 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294334419 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294334471 Place the plotting compass near the magnet on a piece of paper. Mark the direction the compass needle points. Move the plotting compass to many different positions in the magnetic field and mark the direction of the needle. Join the points to show the field lines.


]]> 2025-01-17 02:58:18 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294334471 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294334701 2025-01-17 02:58:31 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294334701 27yuqian https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294334807 Can be switched on and off

]]> 2025-01-17 02:58:38 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294334807 27linyeeshuan https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294334921 Iron is a magnetic material

Iron bar is magnetised/induced

Domains in Iron bar shifts


Dk?

]]> 2025-01-17 02:58:46 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294334921 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294335018 Can be switched on and off

]]> 2025-01-17 02:58:50 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294335018 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294335282 If the metal rod is attracted to the magnet on both poles, it is not a magnet

]]> 2025-01-17 02:59:05 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294335282 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294335412 Place it near a pemanent bar magnet, if it attrcats or repel, it is a magnet, however i not it isnt as it doesn't contain magnetic materials.

]]> 2025-01-17 02:59:12 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294335412 Edric https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294335645 Iron bar is a magnetic material, it has domains that will all align in the same direction (in this case S because of N pole)

The iron bar now moves because opposite poles attract

]]> 2025-01-17 02:59:29 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3294335645 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3296097548 Iron is a magnetic material, and it is placed beside the magnet, so opposite poles will be induced in the iron bar, and opposite poles attract each other.

]]> 2025-01-19 07:28:29 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3296097548 Can be switched on and off https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3296111186 2025-01-19 08:11:49 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3296111186 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3296115845 Place the compass next to the magnet and record where the arrow is pointing with a dot, and move the compass to that dot and repeat the process until it reaches back to magnet, line the dots and put an arrow in which the compass was pointing to.

]]> 2025-01-19 08:25:59 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3296115845 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3296117615 If the metal rod is a magnet one side will repel and the other side will attract, However if both sides attract or neither one attracts or repels, its not a magnet

]]> 2025-01-19 08:30:42 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3296117615 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3296118456 place a bar magnet close to the side of iron rod and if it has magnetised, one side will attract and other side will repel

]]> 2025-01-19 08:33:15 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3296118456 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3296119226 steel

]]> 2025-01-19 08:34:59 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3296119226 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3296120221 you can hammer the bar magnet or heat it

]]> 2025-01-19 08:37:33 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3296120221 https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3296120739 (i) Electromagnet

(ii) I can be turned on and off

(iii) maglev trainies

]]> 2025-01-19 08:39:04 UTC https://padlet.com/wongyanjing1/9wiq5o58h1hcz33/wish/3296120739